Ocean liners collide off Nantucket | July 25, 1956 | HISTORY

At 11:10 p.m. on July 25, 1956, 45 miles south of Nantucket Island, the Italian ocean liner Andrea Doria and the Swedish ocean liner Stockholm collide in a heavy Atlantic fog. Fifty-one passengers and crew were killed in the collision, which ripped a great hole in the broad side of the Italian vessel. Miraculously, all 1,660 survivors on the Andrea Doria were rescued from the severely listing ship before it sunk late the next morning. Both ships were equipped with sophisticated radar systems, and authorities were puzzled as to the cause of the accident.